Ralph Macchio (who was 24 when the first Karate Kid was made... we've been reliably informed that certain appendages have dropped since then) has thrown his two cents into the whole 'Why In The Name of Jaysis are They Remaking The Karate Kid With Will Smith's Son Playing Daniel San' debate:
"It feels pretty good that some people are pretty angry that they're trying to remake The Karate Kid. It feels good that the public feels you don't touch certain things. Some times you go back to that, and probably shouldn't. From my personal view, the filling the void of what Mr. Miyagi was - and the magic of that character - is going to be the toughest task. I (also) don't know where the romantic story-arc goes (with Smith's Daniel) at that age."
Fair point considering Jayden Smith is all of ten-years-old. Jackie Chan is apparently attempting to fill Pat Morita's sandals. It's a travesty in the making.